Oh, I should also mention… HBO has informed me that the Jane Goldman pilot is not (yet) titled THE LONG NIGHT," Martin wrote on his website. "That’s is certainly the title I prefer, but for the moment the pilot is still officially UNTITLED. So… mea culpa, mea culpa, mea culpa."

It sounds like HBO hasn't completely settled on a title for the prequel series yet, but Martin seems pretty confident that The Long Night is in the running.

The writer also provided an update on the series, biting his tongue just before offering any juicy spoilers.

"Elsewise, the pilot is coming along well, with casting falling into place," Martin wrote. I could tell you more, but I am not supposed to. We also have a couple of other successor shows still in development, but I cannot tell you about those either. Sorry."

“Taking place thousands of years before the events of Game of Thrones, the series chronicles the world’s descent from the golden Age of Heroes into its darkest hour," reads HBO's press release announcing the series. "And only one thing is for sure: from the horrifying secrets of Westeros’ history to the true origin of the white walkers, the mysteries of the East to the Starks of legend... it’s not the story we think we know."

PLEASE NOTE: Effective as of November 22, 2018 your use and our operation of this website will no longer be subject to the Privacy Policy and Terms of Service posted in the footer below, and will instead be subject to the standard CBS Interactive Privacy Policy and Terms of Use.